Cast 30

1. 

   Kamal Haasan

   Rajaraman Venkatraman (Vasool Raja)

2. 

   Prakash Raj

   Dr. Vishwanathan

3. 

   Prabhu

   Vatti

4. 

   Sneha

   Janaki Vishwanathan (Paapu)

5. 

   Nagesh

   Sriman Venkatraman

6. 

   Rohini Hattangadi

   Kasturi

7. 

   Crazy Mohan

   Professor Margabandhu

8. 

   Karunas

   Amit

9. 

   Jayasurya

   Zakir

10. 

    Malavika

    Priya

11. 

    Ajay Rathnam

    Medicine Professor

12. Kavithalaya Krishnan

    Surgery Professor

13. 

    Nithin Sathya

    Neelakandan

14. 

    Chitra Lakshmanan

    Dr. Kalidas

15. 

    Thalaivasal Vijay

    Doctor

16. 

    Santhana Bharathi

    Gangadharan

17. Kaaka Radhakrishnan

    Margabandhu's father

18. A. K. Veerasamy

    Hospital cleaner

19. 

    Madhan Bob

    Mani Raja

20. 

    Vaiyapuri

    Piles Patient

21. 

    E. Ramadoss

    Ward Boy

22. 

    Karate Raja

    Raja's sidekick

23. 

    Sampath Ram

    Raja's sidekick

24. 

    Meera Krishnan

    Mani Raja's wife

25. 

    Kaajal Pasupathi

    Nurse

26. 

    Boys Rajan

    Professor

27. 

    Yatin Karyekar

    Anand

28. Benjamin

    Pickpocket

29. 

    Scisor Manogar

30. 

    Ragasiya

    Dancer in the song "Cheena Thaana"

Crew 18